51351171 has 4 divisors (see below), whose sum is σ = 68468232. Its totient is φ = 34234112.

The previous prime is 51351149. The next prime is 51351197. The reversal of 51351171 is 17115315.

51351171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51351171 - 2⁷ = 51351043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51311171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8558526 + ... + 8558531.

It is an arithmetic number, because the mean of its divisors is an integer number (17117058).

Almost surely, 2^51351171 is an apocalyptic number.

51351171 is a deficient number, since it is larger than the sum of its proper divisors (17117061).

51351171 is a wasteful number, since it uses less digits than its factorization.

51351171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17117060.

The product of its digits is 525, while the sum is 24.

The square root of 51351171 is about 7165.9731369857. The cubic root of 51351171 is about 371.6922026154.

Adding to 51351171 its reverse (17115315), we get a palindrome (68466486).

The spelling of 51351171 in words is "fifty-one million, three hundred fifty-one thousand, one hundred seventy-one".